Other numbers: ATCC 33399, CCUG 18374, CIP 103221, DSM 20568, LMG 14516, NCTC 3165, strain SK51. History: < CCUG (Streptococcus mitis) < NCTC < D. Thomson. Isolated from: Pyorrhea. Additional information: Type (4895). Biovar 3. Cultivation conditions: Medium 2, 37°C.